Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8085648 | Servo master magnetically transferring servo patterns to magnetic recording medium, and magnetic transfer method using the servo master | Kyoung-won Na, Jin-seung Sohn | 2011-12-27 |
| 8029681 | Master recording medium for magnetically transferring servo pattern to the magnetic recording medium and method of manufacturing the same | Kyoung-won Na, Du-hyun Lee, Myung-bok Lee, Hae-sung Kim, Jin-seung Sohn | 2011-10-04 |